Airtac PC Threaded Straight Connector PC4M5
The AirTAC Airtac PC Threaded Straight Connector PC4M5 is a genuine male connector for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeMale connector
- SeriesPC
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- Temperature-20 to +70 °C
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PC Threaded Straight Connector PC4M5
The PC4M5 is an AirTAC PC series one-touch male connector: a straight fitting with a Dia 4 mm push-in tube socket on one end and an external M5x0.8 male thread on the other. Push the tube home and the stainless spring gasket and chuck clamp it against the NBR O-ring; press the POM release ring and the tube slides straight back out. No tools, no ferrules, no re-making the joint.
This is the resin-and-brass spec profile, not the metal BP line: 0 to 1.0 MPa working pressure (0 to 10 kgf/cm2), -750 mmHg vacuum, 1.5 MPa proof pressure and -20 to +70 C with soft nylon or polyurethane tubing. The PC body is brass with a POM release button and chuck, and because the thread is M5x0.8 it arrives with a sealing gasket rather than the pre-applied sealant used on the larger tapered threads.
Airtac PC Threaded Straight Connector PC4M5 Technical Specifications
| Model | Airtac PC Threaded Straight Connector PC4M5 |
|---|---|
| Type | Male connector |
| Series | PC |
| Connection | Push-in one-touch |
| Working pressure | 0 - 1.0 MPa (0 - 10 kgf/cm2) |
|---|---|
| Negative pressure | -750 mmHg (10 Torr) |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Applicable tubing | Soft nylon or polyurethane tube |
| Thread standard | PT (Rc tapered) unless the code says otherwise |
POM release button and chuck, aluminium-alloy guide, stainless spring gasket, NBR O-ring; body brass or PBT depending on the part. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac PC Threaded Straight Connector PC4M5
| PC | Male connector. |
|---|---|
| 4 / 6 / 8 / 10 / 12 | Tube outside diameter in mm (3.2 mm exists on the mini series). |
| M5 / 01 / 02 / 03 / 04 | Thread: M5x0.8, 1/8", 1/4", 3/8", 1/2" (M3 on the mini series). |
| D | Black. Blank = grey. |
Fitting & Sealing Notes
- check Cut the tube square and clean before pushing it home, or the seal will leak.
- check Push until it stops, then pull back to check the chuck has gripped.
- check To release, press the collet ring fully in and pull the tube out.
- check Threaded parts arrive with sealant on the thread; M5 sizes use a sealing gasket.
- check Match the tube OD exactly - a 6 mm fitting will not hold 1/4" tube.
Where the Airtac PC Threaded Straight Connector PC4M5 Is Used
Pilot ports on small pneumatic valves
Many compact 5/2 and 3/2 valves carry M5 tapped pilot or exhaust ports. The PC4M5 screws straight in on its gasket and takes Dia 4 polyurethane lead-up to a pilot line or pressure switch.
Analytical and lab instrument air circuits
Sample transport, purging and small actuator lines inside analytical instruments are conventionally plumbed in 4 mm PU tubing. The push-in socket lets a service engineer re-route a line in seconds without heating or glue.
Miniature pick-and-place heads
On a small gripper or vacuum-ejector head the fitting sits right at the moving tool. The straight PC shape keeps the Dia 4 tube leaving axially, clear of the guide rails and sensor cables.
Is the Airtac PC Threaded Straight Connector PC4M5 the Right Part?
Dia 4 is the smallest tube the PC range offers on an M5 port - there is nothing below it in this ladder. The step up is PC6M5 with a Dia 6 mm bore, which moves noticeably more air per stroke of the same valve and suits slightly longer runs; the M5 thread stays identical, so the swap is a fitting change only. If your port is a tapped 1/8 PT instead, PC401 covers the same Dia 4 tube on the bigger thread.
Match the M5x0.8 thread to a genuine M5 tapped pilot or gauge port. The sealing gasket under the collar does the sealing, so do not add tape or paste on top of it. And check the tube, not just the fitting: the chuck is cut for exactly 4 mm OD, so nominal 1/4 inch or 3 mm tube will not seat or seal.
Quick checklist
- ✓ Tube outside diameter matches exactly
- ✓ Thread size and standard match the port
- ✓ Working pressure within 0 - 1.0 MPa (0 - 10 kgf/cm2)
- ✓ Temperature within -20 to +70 °C
Airtac PC Threaded Straight Connector PC4M5 FAQ
It joins Dia 4 mm soft nylon or polyurethane tube to an M5x0.8 male thread. Working pressure 0 to 1.0 MPa (0 to 10 kgf/cm2), negative pressure down to -750 mmHg, proof pressure 1.5 MPa, and an operating temperature range of -20 to +70 C. The body is brass with a POM release button and chuck, an aluminium-alloy guide, a stainless spring gasket and an NBR O-ring. These are the standard resin-profile figures for the PC series; the stainless -S version carries exactly the same numbers.
No. M5 sizes in this catalogue are delivered with a sealing gasket under the collar instead of the pre-applied thread sealant used on the 1/8 to 1/2 tapered threads. Screw it in until the gasket seats on the port face and it seals. Extra PTFE tape or paste can stop the gasket from seating properly and cause a leak rather than prevent one.
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